1. Department of Biomolecular Sciences, University of Urbino Carlo Bo, Via Saffi 2, 61029, Urbino (PU), Italy
2. Section for Biomedical Imaging, University Medical Center Hamburg–Eppendorf, Lottestr. 55, 22529, Hamburg, Germany
3. Institute for Biomedical Imaging, Hamburg University of Technology, Am Schwarzenberg-Campus 3, 21073, Hamburg, Germany
4. Micromod Partikeltechnologie GmbH, Friedrich-Barnewitz-Str. 4 D-18119, Rostock, Germany
5. Department of Neurology, University Medical Center Hamburg–Eppendorf, 20251, Hamburg, Germany